An Echo of Theresa
- Blwyddyn: 1973
- Gwlad: United Kingdom
- Genre: Mystery, Drama, TV Movie, Horror
- Stiwdio: Associated Television (ATV)
- Allweddair:
- Cyfarwyddwr: Peter Jefferies
- Cast: Polly Bergen, Paul Burke, Dinsdale Landen, Basil Henson, Vernon Dobtcheff, Meriel Brook
